Optical properties of organic/inorganic perovskite microcrystals through the characterization of Fabry-Pérot resonances

A precise knowledge of the optical properties, specifically the refractive index, of organic/inorganic perovskites, is essential for pushing forward the performance of the current photovoltaic devices that are being developed from these materials. Here we show a robust method for determining the rea...

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Veröffentlicht in:Dalton transactions : an international journal of inorganic chemistry 2020-09, Vol.49 (36), p.12798-1284
Hauptverfasser: Ramiro-Manzano, Fernando, García-Aboal, Rocío, Fenollosa, Roberto, Biasi, Stefano, Rodriguez, Isabelle, Atienzar, Pedro, Meseguer, Francisco
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container_end_page 1284
container_issue 36
container_start_page 12798
container_title Dalton transactions : an international journal of inorganic chemistry
container_volume 49
creator Ramiro-Manzano, Fernando
García-Aboal, Rocío
Fenollosa, Roberto
Biasi, Stefano
Rodriguez, Isabelle
Atienzar, Pedro
Meseguer, Francisco
description A precise knowledge of the optical properties, specifically the refractive index, of organic/inorganic perovskites, is essential for pushing forward the performance of the current photovoltaic devices that are being developed from these materials. Here we show a robust method for determining the real and the imaginary part of the refractive index of MAPbBr 3 thin films and micrometer size single crystals with planar geometry. The simultaneous fit of both the optical transmittance and the photoluminescence spectra to theoretical models defines unambiguously the refractive index and the crystal thickness. Because the method relies on the optical resonance phenomenon occurring in these microstructures, it can be used to further develop optical microcavities from perovskites or from other optical materials. Fabry-Pérot oscillations modulating the optical transmission and photoluminiscence spectra of hybrid perovskite microcrystals have been characterized. The simultaneous fit of both spectra to theoretical models permits to determine optical properties.
doi_str_mv 10.1039/d0dt02254c
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source Royal Society Of Chemistry Journals; Alma/SFX Local Collection
subjects Microcavities
Microcrystals
Optical materials
Optical properties
Optical resonance
Optics
Perovskites
Photoluminescence
Photovoltaic cells
Refractivity
Single crystals
Thin films
title Optical properties of organic/inorganic perovskite microcrystals through the characterization of Fabry-Pérot resonances
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